/*
 * Copyright [2013-2021], Alibaba Group Holding Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.polardbx.executor.handler.ddl;

import com.alibaba.polardbx.common.utils.TStringUtil;
import com.alibaba.polardbx.executor.ddl.job.factory.LogicalSequenceDdlJobFactory;
import com.alibaba.polardbx.executor.ddl.job.validator.SequenceValidator;
import com.alibaba.polardbx.executor.ddl.newengine.job.DdlJob;
import com.alibaba.polardbx.executor.spi.IRepository;
import com.alibaba.polardbx.optimizer.context.ExecutionContext;
import com.alibaba.polardbx.optimizer.core.rel.ddl.BaseDdlOperation;
import com.alibaba.polardbx.optimizer.core.rel.ddl.LogicalSequenceDdl;
import org.apache.calcite.sql.SequenceBean;
import org.apache.calcite.sql.SqlSequence;

public class LogicalSequenceDdlHandler extends LogicalCommonDdlHandler {
    public LogicalSequenceDdlHandler(IRepository repo) {
        super(repo);
    }

    @Override
    protected DdlJob buildDdlJob(BaseDdlOperation logicalDdlPlan, ExecutionContext executionContext) {
        final LogicalSequenceDdl sequenceDdl = (LogicalSequenceDdl) logicalDdlPlan;
        final SequenceBean sequenceBean = ((SqlSequence) sequenceDdl.relDdl.sqlNode).getSequenceBean();
        String schemaName = sequenceBean.getSchemaName();
        if (TStringUtil.isBlank(schemaName)) {
            schemaName = executionContext.getSchemaName();
            sequenceBean.setSchemaName(schemaName);
        }

        return new LogicalSequenceDdlJobFactory(schemaName,
            sequenceDdl.getTableName() == null ? "" : sequenceDdl.getTableName(), sequenceBean,
            executionContext).create();
    }

    @Override
    protected boolean validatePlan(BaseDdlOperation logicalDdlPlan, ExecutionContext executionContext) {
        final LogicalSequenceDdl sequenceDdl = (LogicalSequenceDdl) logicalDdlPlan;
        final SequenceBean sequenceBean = ((SqlSequence) sequenceDdl.relDdl.sqlNode).getSequenceBean();
        String schemaName = sequenceBean.getSchemaName();
        if (TStringUtil.isBlank(schemaName)) {
            schemaName = executionContext.getSchemaName();
            sequenceBean.setSchemaName(schemaName);
        }

        SequenceValidator.validate(sequenceBean, executionContext, true);
        return false;
    }

}
